Re: [PATCH v2 00/17] net: introduce Qualcomm IPA driver

From: Johannes Berg
Date: Mon Jun 17 2019 - 08:19:32 EST


On Tue, 2019-06-11 at 13:56 +0200, Arnd Bergmann wrote:

[...]

Looking at the flags again,

> #define RMNET_FLAGS_INGRESS_DEAGGREGATION (1U << 0)

This one I'm not sure I understand - seems weird to have such a
fundamental thing as a *configuration* on the channel.

> #define RMNET_FLAGS_INGRESS_MAP_COMMANDS (1U << 1)

Similar here? If you have flow control you probably want to use it?

> #define RMNET_FLAGS_INGRESS_MAP_CKSUMV4 (1U << 2)

This again looks like a hardware specific feature (ipv4 checksum)? Not
sure why this is set by userspace.

> #define RMNET_FLAGS_EGRESS_MAP_CKSUMV4 (1U << 3)

This could be set with ethtool instead, I suppose.

johannes